A fun little arcade game! I'm not very good at it, only got a score of 300 after a few runs. The graphics are quite nice, although I feel like the fish don't quite match the rest of the visual style. Music is nice too, but... 8 MB?! Gotta compress that audio more! I appreciated the little minigames that popped up, but it was a bit frustrating that the two types of minigame had completely different control styles, and sometimes I'd fail the minigame before I even parsed what I was supposed to be doing (they look quite similar). Personally, I'd either remove/greatly extend the timer to fail (you're already incentivized to catch fish quickly due to the overall timer) or pick one type of minigame and stick to it. It was especially annoying to fail the cranking minigame and then have my claw go shooting up to the top of the screen since I'm still cranking.
Still, it's a fun arcade game and it's a good fit for the system!